12568893489 has 6 divisors (see below), whose sum is σ = 18155068386. Its totient is φ = 8379262320.

The previous prime is 12568893461. The next prime is 12568893497. The reversal of 12568893489 is 98439886521.

12568893489 is a `hidden beast` number, since 1 + 2 + 5 + 68 + 8 + 93 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11531538225 + 1037355264 = 107385^2 + 32208^2 .

It is not a de Polignac number, because 12568893489 - 2¹³ = 12568885297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12568893089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698271852 + ... + 698271869.

It is an arithmetic number, because the mean of its divisors is an integer number (3025844731).

Almost surely, 2^12568893489 is an apocalyptic number.

It is an amenable number.

12568893489 is a deficient number, since it is larger than the sum of its proper divisors (5586174897).

12568893489 is a wasteful number, since it uses less digits than its factorization.

12568893489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396543727 (or 1396543724 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 12568893489 in words is "twelve billion, five hundred sixty-eight million, eight hundred ninety-three thousand, four hundred eighty-nine".